Experimental Realization of a Three-Dimensional Topological Insulator, Bi <sub>2</sub> Te <sub>3</sub>

L. Chen, Y.; G. Analytis, James; Chu, Jiun‐Haw; K. Liu, Z.; Mo, Sung‐Kwan; Qi, Xiang; Zhang, Haijun; Lu, Dong-Hui; Dai, Xi; Fang, Zhilai; Zhang, Shengbai; R. Fisher, I.; Hussain, Z.; Shen, Zhi‐Xun

doi:10.1126/science.1173034

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Experimental Realization of a Three-Dimensional Topological Insulator, Bi 2 Te 3

Published in Science • Jun 12, 2009

Authors:

Y. L. Chen

James G. Analytis

Jiun‐Haw Chu

Abstract

Three-dimensional topological insulators are a new state of quantum matter with a bulk gap and odd number of relativistic Dirac fermions on the surface. By investigating the surface state of Bi2Te3 with angle-resolved photoemission spectroscopy, we demonstrate that the surface state consists of a si...

Subject

Topological insulator

Surface states

Physics

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